Blount 633GC User's Manual
Contents
1. Figure 2 SPARK PLUG A worn or fouled spark plug can cause a loss of power difficulty starting or rough idle Figure 3 e Ifthe spark plug is dirty clean it with a wire brush and check the electrode gap Readjust if necessary The correct gap is 020 0 50mm The spark plug should be replaced after 40 hours of operation or earlier if the electrode is badly corroded Figure 3 e Always use the recommended spark plug type Using the wrong spark plug can severely damage the piston and cylinder Champion RCJ7Y 22 2007 ICS Blount Inc P N 70944 Jan 07 633GC OPERATOR S MANUAL CARBURETOR The function of the carburetor is to mix fuel with air Adjustments other than idle speed should be made by a servicing dealer Before adjusting the engine idle speed make sure the air filter is clean and the engine is warmed up T Idle Screw is adjusted so that the engine idles smoothly but the clutch does not engage If saw has been running satisfactorily and there is a Carburetor idle screw gradual decrease in power and drop in RPM at full throttle the filter may have become dirty or saturated with water GUIDE BARS The bar is designed to be used on both sides If the cut is consistently leading to one side turn the bar over to expose a new set of rails A table mounted belt or disc sander can be used to square the rails of a worn bar A badly worn bar can quickly damage an expensive chain If the2. Figure 1 CHAIN TENSIONER The chain tensioner Figure 2 can become clogged with concrete IMPORTANT slurry during cutting After each use thoroughly flush the chain tensioner with water and apply a liberal amount of grease Chain Most Common Causes of Tensioner Damage s Tensioner e Side cover nuts are not tight enough Side cover nuts should be torqued to 20 ft lbs 27Nm Chain tensioning is attempted without loosening the side cover nuts Concrete debris in tensioner pocket Figure 2 20 2007 ICS Blount Inc P N 70944 Jan 07 633GC OPERATOR S MANUAL DRIVE SPROCKET IMPORTANT The drive sprocket rim sprocket is a wear item and should be replaced every 2 3 diamond chains IMPORTANT The needle bearing inside the splined adapter should be greased A rim sprocket system Figure 1 consists of a clutch cup w splined adapter and a rim sprocket When the rim sprocket wears out it is the only part that needs to be replaced The clutch cup with splined adapter is a wear item that needs replacement after 3 to 5 rim sprockets have been used Inspect the rim sprocket for wear Replace the rim sprocket if the drive teeth become pointed Check the drive sprocket bearing by spinning clutch cup Replace the bearing if it is worn out The needle bearing on the drive shaft must be greased regularly use high quality water resistant bearing grease DRIVE SPROCKET REMOVAL Remove the side cover guide
3. OA A w Grease the chain tensioner AFTER 10 HOURS OF USE 1 Remove the starter cover and lubricate the starter recoil spring Clean the flywheel fins and the starter pawls with a wire brush then grease the starter pawls 2 Remove the spark plug and clean with a wire brush Check the electrode gap The correct gap is 0 020 inches 0 5mm AFTER 40 HOURS OF USE 1 Change the spark plug Adjust the electrode to 0 020 inches 0 5mm 2 Check the fuel filter located inside the fuel tank Clean or replace if clogged P N 70944 Jan 07 2007 ICS Blount Inc 17 633GC OPERATOR S MANUAL AIR FILTER The air filter is made from a nylon micro mesh air filter and an IMPORTANT internal spit back screen Both must be kept clean for the engine to operate properly If the saw is not reaching full RPM most likely one or both of the air filters are dirty The air filter Figure 1 should be free of holes and white in color Replace air filter when dirty The spit back screen Figure 2 should be free of holes and be white in color Clean with mild solvent or gasoline and dry with high pressure air If spit back screen is dirty the saw will not reach full RPM During re assembly tighten air filter wing nut finger tight plus an 1 8 of a turn with wrench Figure 2 STARTER HOUSING ASSEMBLY It is common for concrete slurry to get inside the starter housing IMPORTANT assembly during cutting This can cause the
4. OPERATOR S MANUAL 2007 ICS Blount Inc P N 70944 Jan 07 633GC OPERATOR S MANUAL TABLE OF CONTENTS OF CONTENTS SYMBOLS amp LABELS 4 SAFETY 5 TECHNICAL SPECIFICATIONS 8 SET UP 9 OPERATION 12 MAINTENANCE 17 TROUBLESHOOTING 25 REFERENCE 26 P N 70944 Jan 07 2007 ICS Blount Inc 3 SYMBOLS amp LABELS 8 LABELS 633GC OPERATOR S MANUAL THE FOLLOWING SYMBOLS 6 DEFINITIONS ARE FOUND THROUGHOUT THIS MANUAL AND ARE DESIGNED TO MAKE YOU AWARE OF POTENTIAL HAZARDS OR UNSAFE PRACTICES A potentially hazardous situation exists which if not avoided 4 WARNING could result in death or serious injury A potentially hazardous situation exists which if not avoided 4 CAUTION may result in minor or moderate injury or property damage A potential situation exists which if not avoided may result in IMPORTANT product or property damage THE FOLLOWING SYMBOLS amp LABELS MAY BE FOUND IN THIS MANUAL OR ON THE SAW Read the operator s manual carefully and understand the contents before you use this equipment Always use Protective helmet Ear protection Protective glasses or full face protection Wear hand protection Do NOT insert tool into slot narrower than chain Do NOT operate tool without solid footing and firm hand grip Use only in well ventilated area Failure to observe these precautions can result in serious injury 2007 ICS Blount Inc P N 70944 Jan 0
5. 12 x12 x12 150 Ibs 30cm x 30cm x 30cm 68kg e Check for live electrical wiring near the cutting area or in the concrete to avoid electrocution 14 2007 ICS Blount Inc P N 70944 Jan 07 633GC OPERATOR S MANUAL OPERATION CUTTING WITH THE 633GC To start a cut hold trigger on full throttle and slowly plunge the nose of the bar straight into the wall Lengthen the cut and engage the point of the fixed Wallwalker Use the fixed Wallwalker as a pivot point and pull up on the rear handle to rotate the bar into the cut CUTTING TIPS Always operate the diamond chainsaw at full throttle Apply enough feed force so that the free running RPM drops 20 to 30 If too much force is applied the saw will lug or stall The chain will not have enough speed to cut effectively If too little feed force is applied the diamonds will skid and glaze over For straighter cuts use the step cut method First score the entire cut line with the nose of the guide bar approximately 1 2 inch 12mm to 1 inch 25mm deep Next deepen the cut by about 2 inches 50 mm This groove will help guide the guide bar for a straight cut Then plunge all the way through and complete the cut using the fixed Wallwalker Plunge cut instead of starting at the top of the wall This will reduce chatter extend diamond life create a straighter cut and more quickly enable the use of the Wallwalker Use the fixed Wallwalker to help cut more efficie
6. Blount Inc As measured without pulling downward eg hanging by gravity STEP 7 All chains have a tendency to stretch when used Diamond chains stretch more than wood cutting chains because of the abrasive materials they are cutting When a Chain stretches to a point where the drive links are hanging approximately 1 2 12 mm to 3 4 18 mm below the bar it s time to tension the chain See Note 2 STEP 8 Before cutting check for proper tension by pulling the chain around the bar by hand If you cannot easily pull by hand the chain is too tight and needs to be loosened a little See Note 3 P N 70944 Jan 07 633GC OPERATOR S MANUAL GUIDE BAR AND DIAMOND CHAIN INSTALLATION Continue to lift up on the nose of the guide bar and firmly tighten the side cover nuts NOTE To prevent chain tensioner breakage be sure the side cover nuts are tightened to approximately 20 ft lbs STEP 10 Attach to water source with pressure of not less than 20 psi 1 4 bar Note 1 Be aware that the guide bar rails may develop sharp edges over time so always pull the diamond chain by the diamond segments Note 2 Do not over tension the diamond chain Loss of power will result It is normal for the drivelinks to hang underneath the guide bar The diamond chain should be tight but be able to be pulled around the guide bar by hand Note 3 To prevent chain tensioner breakage b
7. bar diamond chain and clutch slurry shield Remove the spark plug and insert the piston stop Supplied with each saw into the spark plug hole Pull the starter cord slowly until the piston stops Figure 2 Use a 19mm wrench to turn the clutch clockwise and remove Slide the clutch cup drive sprocket assembly off the shaft Remove the needle bearing and inspect for heavy wear or damage P N 70944 Jan 07 2007 ICS Blount Inc regularly and should be replaced with each new clutch cup Clutch Splined Rim Cup Adapter Sprocket Figure 1 Figure 2 21 633GC OPERATOR S MANUAL DRIVE SPROCKET INSTALLATION Slide the rim sprocket onto the splined adapter either side out Apply a liberal amount of grease to the needle bearing Place the thin metal washer onto drive shaft Slide the needle bearing and clutch cup w rim sprocket onto shaft Figure 1 e Install the clutch by turning it counter clockwise on the drive shaft and firmly tighten Replace the clutch slurry shield Installation of drive sprocket assembly is now complete Figure 1 The needle bearing on the drive shaft has to be greased regularly daily Use high quality water resistant bearing Grease hole grease Bearing Tip It is not necessary to remove the clutch cup to grease the bearing There is a channel that goes directly from the drive shaft to the bearing Figure 2 Simply inject grease directly into the end of the drive shaft
8. rear handle 7 Place left hand on front handle 8 With right hand slowly pull starter handle until the starter pawls engage 9 Pull the starter cord hard fast short pulls until engine fires or pops should be 1 to 7 pulls 10 Push the choke lever in 11 Pull the starter cord until engine starts should be 1 to 2 pulls 12 When the engine starts allow the engine to idle Pull on the throttle trigger several times to help warm up the engine 13 Open the water valve completely WARM ENGINE STARTING PROCEDURE 1 Use the same procedure as starting cold engine but DO NOT pull choke lever out If choke is used the carburetor will flood with gas 2 If the engine does not start in hard fast pulls with the throttle locked unlock the throttle and pull the starter cord 3 more times Note To hold the trigger fully open it may be necessary to insert right foot into rear handle opening and twist STOPPING THE SAW To turn the engine off toggle ignition switch to the STOP position Close water valve P N 70944 Jan 07 2007 ICS Blount Inc 13 OPERATION RATION 633GC OPERATOR S MANUAL PRE CUT CHECKLIST Proper Chain Installation The bumper should lead the segment into the cut double bumper chains may be mounted in either direction Proper Chain Tension The chain should be tight but easily pulled around the guide bar by hand Ensure all safety devices are properly mounted and functional and that all
9. starter pawls to stick and not engage when the rope is pulled Oil port e After each usage thoroughly flush the starter housing assembly with water e Oil the recoil spring by spraying lightweight oil into the port Figure 3 e Oil the starter pawls by spraying lightweight oil into the starter housing through the vents Check the starter cord for fraying replace if necessary Figure 3 18 2007 ICS Blount Inc P N 70944 Jan 07 633GC OPERATOR S MANUAL MAINTENANCE STARTER ROPE REPLACEMENT Remove the four screws attaching the starter assembly to the crankcase and remove the starter cover assembly Remove the three starter pulley cover screws Remove the starter pulley cover e Pull the rope out until the notch in the pulley has made at least two full revolutions and is at the rope inlet then hold the pulley in place Figure 1 While holding the pulley in place lift the rope into the pulley Figure 1 notch and allow the pulley to unwind slowly counterclockwise without wrapping the rope Figure 2 Do this until the recoil spring is completely unwound Undo the screw in the center of the pulley and remove the pulley Remove the old rope from the pulley Retain the starter rope washer e Pry the starter rope retainer from the starter rope handle and remove the old rope from the handle Tie a knot in one end of
10. 7 A 633GC OPERATOR S MANUAL SAFETY THE FOLLOWING SYMBOL APPLIES TO ALL THE ITEMS LISTED ON THIS PAGE A potentially hazardous situation exists which if not avoided A WARNING could result in death or serious injury Chain breakage can result in high speed ejection of parts which can result in death or serious personal injury to operators or bystanders The items listed below are critical to minimizing the risk of chain breakage and injury DO NOT operate a diamond chainsaw with a damaged modified broken or missing side cover bottom guard or guard flap The side cover bottom guard and guard flap provides protection against contact with moving parts ejected debris broken diamond chain thrown water and concrete slurry DO NOT operate a saw with loose missing damaged or improperly repaired parts DO NOT install or run the chain backwards The bumper must lead the segment into the cut y EPDE mn 4 2 e DO NOT insert a diamond chainsaw into a slot narrower than the chain segments Rapid pushback might occur Reference Most diamond segments are 225 inches 5 72 mm wide DO NOT use damaged modified or improperly repaired chain DO NOT run a diamond chainsaw upside down Concrete debris can fly back into the operator s face DO NOT cut ductile iron pipe with a diamond chainsaw Segment loss or chain breakage may occur P N 70944 Jan 07 2007 ICS Blou
11. CS Blount Inc TECHNICAL SPECIFICATIONS SPECIFICATIONS 633GC OPERATOR S MANUAL P N 70944 Jan 07 633GC OPERATOR S MANUAL SET UP GUIDE BAR AND DIAMOND CHAIN INSTALLATION Mount the diamond chain on the guide bar starting at the drive sprocket and continue Loosen side cover nuts and remove side over the guide bar nose cover Install the diamond chain correctly If using a single bumper chain the bumper must always lead the segment into the cut as shown here dits 4 a Place bar onto studs and chain adjustment pin STEP 4 Install the side cover P N 70944 Jan 07 2007 ICS Blount Inc 9 SET UP ee 633GC OPERATOR S MANUAL GUIDE BAR AND DIAMOND CHAIN INSTALLATION ea 3 2 5 b olo 6 dlo dlo dlo do db glo oio oo od STEP 5 Make sure all the drive links are inside the guide bar groove then lift the bar nose and tension the chain by turning the screw clockwise If the chain is too loose it could come off the bar or it will allow the drive sprocket to spin without turning the chain which can chew up the chain drive links If the chain is too tight a lot of the saw s power goes into turning the chain rather than into the cut In extreme over tightened cases the saw may not be able to turn the chain at all In addition damage can occur to the bar nose and premature stretch may occur See Note 1 1 0 2007 ICS
12. TURE CHAIN STRETCH Not enough water pressure The minimum water pressure required is 20 psi 1 4 bar Insufficient water supply may result in excessive wear to the diamond chain which can lead to loss of strength and diamond chain breakage CHAIN TENSIONER BREAKAGE Side cover nuts are not tight enough Torque to 20 ft lbs 27Nm WATER NOT FLOWING Water hose is kinked or supply is not turned on WON T START Turn ignition switch on or possible defective spark plug WON T START Low compression less than 120 psi 8 bar Possible incorrect fuel mixture Reference new 150 to 180 psi 10 to 12 bar used 140 to 160 psi 9 to 11 bar DIFFICULT TO START Possible flooded engine Turn ignition switch on push choke in hold throttle on full with foot and pull starter cord until engine starts DIFFICULT TO START Possible fouled spark plug Remove spark plug clean with wire brush and re gap CHAIN BREAKAGE Chain installed backwards Bumpers should lead segments into the cut CHAIN BREAKAGE Not enough feed pressure while cutting Avoid letting the saw bounce and chatter Further questions Call 1 800 321 1240 or visit our website at www icsbestway com P N 70944 Jan 07 2007 ICS Blount Inc 25 REFERENCE APPROXIMATE CUTTING RATES Material Cutting Rate Hard aggregate amp Steel 15 25 sq in min 90 160 sq cm min Medium aggregates 20 30 sq in min 160 190 sq cm min Masonry Soft ag
13. chain is touching the bottom of the bar groove replace the bar Check the guide bar for straightness Minor adjustments can be made by bending the bar slightly Proper chain tension will extend bar life See page 9 Under some circumstances especially low water pressure the sprocket nose can wear out before the guide bar body Sprocket nose replacement kits may be purchased from an Authorized Dealer part 70249 Spray the chain and bar with lightweight oil for storage Store bar with the sprocket nose up Periodically clean the water ports inside the groove of the bar using a small diameter piece of wire Water port cleaners are available from an Authorized Dealer The bar is solely a guide track for the chain Never use the bar to lift twist or pry concrete material P N 70944 Jan 07 2007 ICS Blount Inc 23 After Every Use 1 10 Spit back screen should be 11 Spray saw bar and chain 24 Check for loose fasteners Rinse saw bar amp chain with water Tighten as necessary Inspect flush and grease the chain tensioner Inspect drive sprocket for wear Replace sprocket if groove cuts through the top of the tooth Check drive sprocket bearing for wear by spinning clutch cup Replace if worn out Grease drive sprocket bearing Inject grease into the end of the drive shaft Spin clutch cup while greasing Check the starter cord for wear or damage Replace as nece
14. controls are in proper working order Besure there are no obstructions plumbing electrical conduit air ducts and no unnecessary people present e Always wear protective clothing including hard hat eye protection hearing protection non slip safety boots and gloves Avoid wearing loose fitting clothing e Adequate Water Supply and Pressure Minimum Flow 2 gpm 8 lpm Minimum Water Pressure 20 psi 1 4 bar fry Diamond chains with SealPro require a minimum diamond chain water pressure of 20 psi 1 4 bar technology by ICS The single most important factor an operator can control to IMPORTANT increase chain life is to use adequate water pressure Insufficient water supply will result in excessive wear to the chain which can lead to loss of strength and chain breakage PLANNING THE CUT e Select the proper chain type for the material being cut Outline the cut with a permanent marker for a visual cutting guide e Avoid pinching the guide bar and chain Always cut the bottom of an opening first then top and then the sides Save the easiest cut for last e For the straightest cuts use the Step Cut method First score the entire cut line approximately a half inch deep using the nose of the bar Next deepen the cut by about two inches Then plunge all the way through and complete the cut using the Wallwalker e Be sure cut concrete cannot fall and injure operator or bystanders Concrete is very heavy one cubic foot
15. e sure the side cover nuts are tightened to approximately 20 ft lbs 27Nm P N 70944 Jan 07 2007 ICS Blount Inc 1 1 OPERATION RATION 633GC OPERATOR S MANUAL FUEL HANDLING CAUTION FUEL MIXTURE 25 1 gasoline oil mixture GASOLINE OIL GASOLINE OIL US US Liters ml Gallon Fl oz 1 40 1 5 2 5 200 2 1 2 12 8 10 400 5 25 6 20 800 Use premium unleaded gasoline with a minimum octane rating of 90 If lower octane gasoline is used engine temperature will increase which can result in a piston seizure and damage to the engine e Always provide adequate ventilation when handling fuel Use caution when handling gasoline Avoid direct contact with skin or inhaling fuel vapor FUEL MIXING Always mix gasoline and oil in a clean container intended for use with fuel e Keep fuel container closed tightly to prevent moisture from getting into the fuel Always begin mixing fuel by adding half the amount of gasoline to be used Then add the correct amount of two stroke oil for 25 1 mixture and finish filling the container with gasoline Do not mix more than one month s supply of fuel This helps prevent the separation of the two stroke oil from the gasoline varnishing e If the saw is not used for an extended period of time 3 months the fuel tank should be emptied and cleaned FUELING e Always shut off the saw before fueling Before fueling clean the area around
16. ecessary people present e Setup a well marked safety zone with a roped boundary and clear signs Provide adequate ventilation when working in an enclosed area Breathing exhaust gases is dangerous To avoid electrocution check for live electrical wiring near cutting area 6 2007 ICS Blount Inc P N 70944 Jan 07 633GC OPERATOR S MANUAL SAFETY O THE FOLLOWING SYMBOL APPLIES TO ALL ITEMS LISTED ON THIS PAGE A potential situation exists which if not avoided may result in IMPORTANT product or property damage Note The diamond chainsaw is equipped with a two stroke engine and must always be run using a mixture of gasoline and ICS two stroke engine oil It is important to accurately measure the amount of oil to be mixed to ensure that correct mixture is obtained When mixing small amounts of fuel even small inaccuracies can drastically affect the ratio of the mixture This engine is designed to be operated on premium unleaded gasoline Use high quality unleaded gasoline with a minimum octane rating of 90 If lower octane gasoline is used engine temperature will increase which will result in a piston seizure and damage to the engine Fuel mixture 25 1 gasoline oil mixture Incorrect fuel mixture is the number one cause of piston seizure e UselCS brand two stroke engine or other high quality 2 stroke oil that has been formulated for air cooled power equipment Never use two stroke oil formulated
17. for water cooled two cycle engines such as outboard motor oil e Never use motor oil intended for four stroke engines ENGINE BREAK IN e Itis very important to break in a new engine to seat all moving parts especially the piston rings To break in the engine run one full tank of 25 1 fuel at idle cycling the throttle every 5 to 10 minutes to prevent loading Failure to break in an engine may result in piston seizure P N 70944 Jan 07 2007 ICS Blount Inc 7 Engine Type 2 stroke Air Cooled Displacement 101cc 6 2 cu in Horsepower 6 5 HP 4 8 kw 8700 RPM Engine Speed 11 500 500 RPM Mechanically governed Diamond Chain Speed 4 950 fpm 25m s free running Idling Speed 2800 3200 RPM Weight 27 5 lbs 2 bar Cut Depth 14 in 36cm amp 16 2 in 41cm Bar Lengths 14 in 36cm amp 16 2 in 41cm Carburetor Walbro WGAKG Throttle shaft sealed Ignition Selettra electronic Water resistant Clutch Centrifugal three shoe single spring Fuel ratio 25 1 gasoline to oil Fuel Capacity 34 oz 1 Liter 15 18 minutes run time per tank Water Supply Minimum 20psi 1 5 bar Water Flow Minimum 2 gpm 8 lpm Noise Level 102dB at 3 ft 1m Vibration Level 8 meters sec front handle Engine Break in Period One tank without cutting cycling throttle Spark Plug Champion CJ7Y or Bosch BWS7F 2007 I
18. fuel cap to prevent dirt from contaminating the fuel Contamination of the fuel tank can lead to saw malfunction e Thoroughly mix the fuel in it s container before fueling e Slowly open the fuel cap to release any pressure that may have built up in the tank e After adding fuel tighten the fuel cap carefully and secure with a wrench 12 2007 ICS Blount Inc P N 70944 Jan 07 633GC OPERATOR S MANUAL OPERATION STARTING AND STOPPING A DIAMOND CHAINSAW Never start a diamond saw without the bar chain and side cover WARNING properly assembled Otherwise the clutch can come loose and cause personal injuries Always move a diamond chainsaw at least 10 feet 3 m away from CAUTION the fueling area before starting Place the diamond saw on clear ground Ensure that secure footing is established and chain is not contacting any objects IMPORTANT COLD ENGINE STARTING PROCEDURE 1 Toggle the ignition switch to the START position and pull the choke lever out N Lock the throttle in the start position by depressing the trigger A and trigger interlock B at the same time Depress and hold throttle lock button C while releasing the trigger and trigger interlock in succession Open the water valve 1 4 turn Place the diamond chainsaw on the ground making sure the chain is free of any obstructions Figure 1 a Trigger b trigger interlock c throttle lock 6 Place right foot on the base of the
19. gregates 30 50 sq in min 190 320 sq cm min INCH FOOT DEFINITION An in ft is a measure of how much material is to be cut An in ft is defined as depth in inches times length in feet Note 129 in ft 1m Example How many in ft are in this doorway 1 Determine the depth of the cut in inches For this example 8 inches 2 Determine the length of the cut in feet 3 7 3 7 20 feet 3 Multiply the two numbers 8 in x 20 ft 160 in ft sd act 15 2 TY gt DET ROSS PA SO EO TODT SA CRE 1 ZE Fa EU EVA Un DJ QURE VASE tS 26 2007 ICS Blount Inc P N 70944 Jan 07 633GC OPERATOR S MANUAL ICS Blount Inc 4909 SE International Way Portland OR 97222 Tel 800 321 1240 Fax 503 653 4393 www icsbestway com 2007 ICS Blount Inc P N 70944 Jan 07
20. nt Inc 5 SAFETY O 633GC OPERATOR S MANUAL THE FOLLOWING SYMBOL APPLIES TO ALL ITEMS LISTED ON THIS PAGE A potentially hazardous situation exists which if not avoided CAUTION may result in minor or moderate injury or property damage e Always turn a diamond chainsaw OFF when performing maintenance on the saw including chain tensioning Never use equipment that is not functioning properly Have the saw repaired by qualified service personnel Turn engine OFF before refueling Keep away from open flame Always provide adequate ventilation when handling fuel Move diamond chainsaw at least 10 feet 3 m away from refueling area before starting SealPro diamond chains require a minimum water pressure of 20 psi 1 4 bar Insufficient water supply may result in excessive wear to the chain which can lead to loss of strength and chain breakage Never start a diamond chainsaw unless the bar chain and side cover are properly installed diamond chain technology by ICS GENERAL SAFETY PRECAUTIONS Always wear protective clothing including hard hat eye protection hearing protection and gloves e Avoid loose fitting clothing Perform safety checks before starting each day e Always operate tool with solid footing and with both hands on saw e Remove or control slurry to prevent slippery conditions while cutting Besure there are no obstructions plumbing electrical conduit air ducts and no unn
21. ntly and reduce operator fatigue The fixed Wallwalker is a fulcrum that can be used to apply additional force when cutting To use correctly plunge into the wall and simply engage the point of the fixed Wallwalker into the cut and pry upward with the rear handle WallWalker point As the saw begins to rotate up feed force is developed down the line of the intended cut Once the saw is fully rotated upwards pull the saw out of the cut a few inches and re engage the pick into the cut and repeat When cutting heavy rebar slowly rock the saw so that you re always cutting concrete as well as steel This will help keep the diamonds exposed Also expect less chain life when cutting heavy rebar Expect more chain stretch when making nose buried cuts for extended periods of time as the chain does not have a chance to throw the slurry away from the nose of the bar If the saw begins to cut consistently crooked turn the bar over and use the other side Dress worn rails with belt sander Note The normal life of a guide bar is 2 to 3 diamond chains Heavy rebar can shorten guide bar life When using a new chain you can increase the cutting speed by opening up the diamonds Make a few cuts in an abrasive material such as a cinder block P N 70944 Jan 07 2007 ICS Blount Inc 15 OPERATION RATION 633GC OPERATOR S MANUAL SYSTEM CLEAN UP e After cutting run the saw for at least 15 seconds with the water on to flush sl
22. ssary Lube starter recoil spring Spray lightweight oil into lube hole Also spray lightweight oil into the air intake slots on the starter housing to keep starter pawls from sticking Inspect air filter and spit back screen Replace filter if dirty white with no oil build up Rinse in gas or solvent to clean with lightweight oil 2007 ICS Blount Inc 633GC OPERATOR S MANUAL After 10 hours 1 Remove the starter cover and lubricate the starter recoil spring Clean the fins and the starter pawls on the flywheel with a wire brush then grease starter pawls Remove 4 clean the spark plug Check the electrode gap The correct gap is 020 inch 0 5mm Inspect air filter replace if nessesary Clean the spit back screen inside the air filter with gas or solvent After 40 hours 1 Change spark plug Adjust electrode gap to 020 inch 0 5mm Check fuel filter located inside the fuel tank Clean or replace if clogged P N 70944 Jan 07 TROUBLESHOOTING TROUBLESHOOTING SAW WON T REACH FULL RPM Air filter or pre filter may be dirty SLOW CHAIN SPEED Chain tension too tight Chain should always be able to be pulled around the bar by hand It is normal for the chain drive links to hang below the bar POOR CUTTING SPEED Diamonds may be glazed over Make a few cuts in an abrasive material such as a cinder block to expose the diamonds PREMA
23. the rope and thread the rope through the o Starter rope washer then Starter rope pulley then Starter cover then Starter rope handle then Starter rope retainer OOOO Tie a knot to lock the end of the rope in the starter rope retainer e Reseat the starter rope retainer in the starter rope handle Replace the pulley in the starter cover Use blue Loctite 242 Figure 2 on the starter pulley screw TENSIONING THE RECOIL SPRING e With the rope fully extended and no tension on the recoil spring lift the rope into the notch in the pulley and rotate the pulley clockwise 7 wraps Figure 2 and then allow the spring to retract the rope This should apply the proper amount of tension to the recoil spring e If the pulley is over wrapped the recoil spring will break on use To check that the starter pulley is not over wrapped pull the cord completely out of the housing and turn the pulley an additional 1 2 turn clockwise If the pulley turns another 2 turn it is correctly assembled If not release one wrap of rope and check again P N 70944 Jan 07 2007 ICS Blount Inc 19 MAINTENANCE 633GC OPERATOR S MANUAL STARTER HOUSING ASSEMBLY To reattach the starter housing first pull the starter cord out then hold the starter housing against the crankcase Figure 1 Slowly release the starter cord to enable the pulley to fit between the pawls Insert and tighten the screws Use blue Loctite 242
24. urry and debris from chain bar and drive sprocket e Wash concrete slurry from saw assembly e Avoid getting any water in the carburetor or exhaust system If water enters exhaust port point the bar tip down and pull the starter handle several times to expel water from muffler e Remove bar and chain Flush out the chain tensioner with high water pressure and lubricate with grease e After cleaning the saw spray the entire saw body chain bar and drive sprocket with lightweight oil Using lightweight oil on the saw will minimize rust and help reduce slurry build up 1 6 2007 ICS Blount Inc P N 70944 Jan 07 633GC OPERATOR S MANUAL Follow these simple maintenance guidelines and the 633GC Concrete Cutting Saw will keep running at its very best AFTER EACH USE 1 Rinse the saw guide bar and diamond chain with water 2 Follow instructions on the Daily Maintenance Label located on the air filter cover fT 1 INSPECT All fasteners ag Q Sprocket wear Starter rope wear Air filter OIL T U Guide bar 8 diamond chain Bar nose sprocket GREASE R Chain tensioner Inspect and tighten all fasteners as necessary Inspect drive sprocket for tooth wear and replace if tooth tips are pointed Inspect the starter cord Replace if frayed Clean air filter Inspect the air filter for holes Replace as necessary Spray saw guide bar and chain with lightweight oil
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